feat 重构stream流API并适配lex_parse和lexer

This commit is contained in:
zzy
2025-12-08 23:04:11 +08:00
parent 1ab07a5815
commit 36bff64a91
17 changed files with 402 additions and 244 deletions

View File

@@ -1,67 +1,120 @@
#ifndef __SMCC_CORE_STREAM_H__
#define __SMCC_CORE_STREAM_H__
#ifndef __SMCC_CORE_PROBE_STREAM_H__
#define __SMCC_CORE_PROBE_STREAM_H__
#include "core_impl.h"
#include "core_macro.h"
#include "core_mem.h"
#include "core_str.h"
struct core_stream;
typedef struct core_stream core_stream_t;
struct core_probe_stream;
typedef struct core_probe_stream core_probe_stream_t;
#define core_stream_eof (-1)
struct core_stream {
/**
* @brief 带探针的流接口
*
* 这个流提供了双指针机制:当前读取位置(头指针)和探针位置(尾指针)。
* 尾指针只能向前移动,用于查看而不消费。
* 头指针可以前进或单次后退,但不能一直后退到尾指针后面。
*/
struct core_probe_stream {
cstring_t name;
/// @brief 消费头指针处的字符(移动头指针)
int (*consume)(core_probe_stream_t *stream);
/// @brief 查看当前探针位置的字符,不移动任何指针
int (*peek)(core_probe_stream_t *stream);
/// @brief 移动探针位置并返回字符
int (*next)(core_probe_stream_t *stream);
/// @brief 移动头指针到探针位置
void (*sync)(core_probe_stream_t *stream);
/// @brief 重置探针位置到头指针位置
void (*reset)(core_probe_stream_t *stream);
/// @brief 回退一个字符(单次后退,头指针后退一步)
cbool (*back)(core_probe_stream_t *stream);
/// @brief 读取指定数量的字符到缓冲区
usize (*read_buf)(core_stream_t *stream, char *buffer, usize count);
usize (*read_buf)(core_probe_stream_t *stream, char *buffer, usize count);
/// @brief 获取下一个字符
int (*peek_char)(core_stream_t *stream);
/// @brief 检查是否到达流末尾
cbool (*is_at_end)(core_probe_stream_t *stream);
/// @brief 重置字符流位置
void (*reset_char)(core_stream_t *stream);
/// @brief 读取并消费下一个字符(移动流位置)
int (*next_char)(core_stream_t *stream);
/// @brief 释放资源
void (*free_stream)(core_stream_t *steam);
/// @brief 销毁流并释放资源
void (*destroy)(core_probe_stream_t *stream);
};
static inline usize core_stream_read_buf(core_stream_t *self, char *buffer,
usize count) {
static inline int core_probe_stream_consume(core_probe_stream_t *self) {
return self->consume(self);
}
static inline int core_probe_stream_peek(core_probe_stream_t *self) {
return self->peek(self);
}
static inline int core_probe_stream_next(core_probe_stream_t *self) {
return self->next(self);
}
static inline void core_probe_stream_sync(core_probe_stream_t *self) {
self->sync(self);
}
static inline cbool core_probe_stream_back(core_probe_stream_t *self) {
return self->back(self);
}
static inline void core_probe_stream_reset(core_probe_stream_t *self) {
self->reset(self);
}
static inline usize core_probe_stream_read_buf(core_probe_stream_t *self,
char *buffer, usize count) {
return self->read_buf(self, buffer, count);
}
static inline int core_stream_peek_char(core_stream_t *self) {
return self->peek_char(self);
static inline cbool core_probe_stream_is_at_end(core_probe_stream_t *self) {
return self->is_at_end(self);
}
static inline void core_stream_reset_char(core_stream_t *self) {
self->reset_char(self);
static inline cbool core_probe_stream_has_more(core_probe_stream_t *self) {
return !self->is_at_end(self);
}
static inline int core_stream_next_char(core_stream_t *self) {
return self->next_char(self);
static inline void core_probe_stream_destroy(core_probe_stream_t *self) {
self->destroy(self);
}
static inline void core_stream_free_stream(core_stream_t *self) {
self->free_stream(self);
}
#ifndef __SMCC_CORE_NO_MEM_STREAM__
typedef struct core_mem_stream {
core_stream_t stream;
#ifndef __SMCC_CORE_NO_MEM_PROBE_STREAM__
/**
* @brief 内存探针流结构
*/
typedef struct core_mem_probe_stream {
core_probe_stream_t stream;
const char *data;
usize data_length;
usize curr_pos;
usize peek_pos;
cbool owned;
} core_mem_stream_t;
core_stream_t *core_mem_stream_init(core_mem_stream_t *stream, const char *data,
usize length, cbool need_copy);
usize curr_pos; // 当前读取位置
usize probe_pos; // 探针位置用于peek
cbool owned; // 是否拥有数据(需要释放)
} core_mem_probe_stream_t;
/**
* @brief 初始化内存探针流
*
* @param stream 流结构指针
* @param data 数据指针
* @param length 数据长度
* @param need_copy 是否需要复制数据
* @return core_probe_stream_t* 成功返回流指针失败返回NULL
*/
core_probe_stream_t *core_mem_probe_stream_init(core_mem_probe_stream_t *stream,
const char *data, usize length,
cbool need_copy);
#endif
#endif /* __SMCC_CORE_STREAM_H__ */
#endif /* __SMCC_CORE_PROBE_STREAM_H__ */